Pen



FIG. 1 is a perspective view of a pen showing my new design;

FIG. 2 is a front view thereof

FIG. 3 is a back view view thereof

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is an enlarged top plan view thereof;

FIG. 7 is an enlarged bottom plan view thereof; and,

FIG. 8 is an enlarged detail view of the pen point, shown without therest of the pen for convenience.

CLAIM The ornamental design for a pen, as shown and described.